48453509 has 4 divisors (see below), whose sum is σ = 52180716. Its totient is φ = 44726304.

The previous prime is 48453481. The next prime is 48453533. The reversal of 48453509 is 90535484.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16564900 + 31888609 = 4070^2 + 5647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48453509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48453109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863584 + ... + 1863609.

It is an arithmetic number, because the mean of its divisors is an integer number (13045179).

Almost surely, 2^48453509 is an apocalyptic number.

It is an amenable number.

48453509 is a deficient number, since it is larger than the sum of its proper divisors (3727207).

48453509 is a wasteful number, since it uses less digits than its factorization.

48453509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727206.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 48453509 is about 6960.8554790342. The cubic root of 48453509 is about 364.5650890491.

The spelling of 48453509 in words is "forty-eight million, four hundred fifty-three thousand, five hundred nine".